Package org.apache.druid.segment.data

Class FixedIndexedWriter<T>

java.lang.Object

org.apache.druid.segment.data.FixedIndexedWriter<T>

All Implemented Interfaces:

DictionaryWriter<T>, Serializer

public class FixedIndexedWriter<T>
extends Object
implements DictionaryWriter<T>

Writer for a FixedIndexed

Constructor Summary

Constructors

Constructor	Description
FixedIndexedWriter(SegmentWriteOutMedium segmentWriteOutMedium, TypeStrategy<T> typeStrategy, ByteOrder byteOrder, int width, boolean isSorted)

Method Summary

Modifier and Type	Method	Description
T	get(int index)
int	getCardinality()
Iterator<T>	getIterator()
long	getSerializedSize()	Returns the number of bytes, that this Serializer will write to the output _channel_ (not smoosher) on a Serializer.writeTo(java.nio.channels.WritableByteChannel, org.apache.druid.java.util.common.io.smoosh.FileSmoosher) call.
boolean	isSorted()
void	open()
void	write(T objectToWrite)
void	writeTo(WritableByteChannel channel, FileSmoosher smoosher)	Writes serialized form of this object to the given channel.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FixedIndexedWriter

public FixedIndexedWriter(SegmentWriteOutMedium segmentWriteOutMedium,
                          TypeStrategy<T> typeStrategy,
                          ByteOrder byteOrder,
                          int width,
                          boolean isSorted)

Method Detail

isSorted

public boolean isSorted()

Specified by:

isSorted in interface DictionaryWriter<T>

open

public void open()
          throws IOException

Specified by:

open in interface DictionaryWriter<T>

Throws:

IOException

getCardinality

public int getCardinality()

Specified by:

getCardinality in interface DictionaryWriter<T>

getSerializedSize

public long getSerializedSize()

Description copied from interface: Serializer

Returns the number of bytes, that this Serializer will write to the output _channel_ (not smoosher) on a Serializer.writeTo(java.nio.channels.WritableByteChannel, org.apache.druid.java.util.common.io.smoosh.FileSmoosher) call.

Specified by:

getSerializedSize in interface Serializer

write

public void write(@Nullable
                  T objectToWrite)
           throws IOException

Specified by:

write in interface DictionaryWriter<T>

Throws:

IOException

writeTo

public void writeTo(WritableByteChannel channel,
                    FileSmoosher smoosher)
             throws IOException

Description copied from interface: Serializer

Writes serialized form of this object to the given channel. If parallel data streams are needed, they could be created with the provided smoosher.

Specified by:

writeTo in interface Serializer

Throws:

IOException

get

@Nullable
public T get(int index)
      throws IOException

Specified by:

get in interface DictionaryWriter<T>

Throws:

IOException

getIterator

public Iterator<T> getIterator()